CVE-2024-21821

HIGH
Published Jan 11, 2024 Modified Jun 17, 2025 CWE-78

Description

Multiple TP-LINK products allow a network-adjacent authenticated attacker with access to the product from the LAN port or Wi-Fi to execute arbitrary OS commands.

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CVSS v3.1 Score

8.0
HIGH
CVSS:3.1/AV:A/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Weakness Type (CWE)

CWE-78 OS Command Injection

Affected Products

Vendor Product
tp-link archer_ax3000_firmware
tp-link archer_ax3000
tp-link archer_ax5400_firmware
tp-link archer_ax5400
tp-link archer_axe75_firmware
tp-link archer_axe75

References

Frequently Asked Questions

What is CVE-2024-21821? +
Multiple TP-LINK products allow a network-adjacent authenticated attacker with access to the product from the LAN port or Wi-Fi to execute arbitrary OS commands. It has a CVSS v3.1 base score of 8.0 (HIGH).
How severe is CVE-2024-21821? +
CVE-2024-21821 has a CVSS v3.1 score of 8.0 out of 10, rated HIGH. This is a high-severity vulnerability that should be prioritized for patching.
What products are affected by CVE-2024-21821? +
CVE-2024-21821 affects products from tp-link, specifically: archer_ax3000, archer_ax3000_firmware, archer_ax5400, archer_ax5400_firmware, archer_axe75, archer_axe75_firmware. Check the affected products table above for specific version ranges.
How do I check if I'm vulnerable to CVE-2024-21821? +
You can use Secably's free Website Scanner to check your website for known vulnerabilities. For infrastructure scanning, use the Port Scanner to identify exposed services that may be affected. Check the vendor advisories linked above for specific patch and version information.

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